quartz定时任务实现只执行一次，以后不再执行

按说只在tomcat启动时执行一次，我们可以用监听器来实现，但是有些开发框架中因特殊场景不适合用监听器。那么定时任务也可以实现只执行一次的操作。配置如下

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xml version="1.0" encoding="UTF-8"?>
   xmlns="http://www.springframework.org/schema/beans"
   xmlns:mvc="http://www.springframework.org/schema/mvc" 
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context="http://www.springframework.org/schema/context" 
   xmlns:tx="http://www.springframework.org/schema/tx"
   xmlns:util="http://www.springframework.org/schema/util"
   xsi:schemaLocation="
      http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd  
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
 
    

    id="publicWebServiceJob" class="cn.org.site.business.quartz.PublicWebServiceScheduleJob"/>
    id="publicWebServiceJobDetail" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
        name="targetObject" ref="publicWebServiceJob" />
        name="targetMethod" value="doJob">
        
        name="concurrent" value="false"/>

    




    


    
    id="publicWebServiceTriggerBean" class="org.springframework.scheduling.quartz.SimpleTriggerFactoryBean">
        name="jobDetail" ref="publicWebServiceJobDetail" />
        name="startDelay" value="5000" /> 

        name="repeatCount" value="0" />  
    

    
    id="schedulerFactoryBean-em" lazy-init="false"  class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
        name="triggers">
            
                
                bean="publicWebServiceTriggerBean"/>